Stove-pipe thimble



` (No Model.)l

M. MGGUIRE. sTovB Pm; THIMBLE.

Patented Sept. 30. 18,90.

UNITED STATES l PATENT OEECE.

MICHAEL MCGUIRE, OF SYRACUSE, NEW YORK.

STOVE-PIPE THIMBLE.

SPECIFICATION forming part of Letters Patent No. 437,381, dated September 30, 1890,

Application tiled December 1l. 1889. Serial No. 333 ,313. (No model.)

To all whom it may concern:

Be it known that I, MICHAEL MOGUIRE, of Syracuse, in the county of Onondaga, in the State of New York, have invented new and useful Improvements in Stove-Pipe Thimbles, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

My invention relates to an improved stovepipe thimble, and has for its object the production of a simple and effective device that is more cheaply manufactured and readily assembled than stove-thimbles heretofore produced; and to this end it consists, essentially, in a casing composed of telescopic sections, an outer facing or collar for said sections formed of suitable material and, preferably, of cast metal and provided with openings, rivets passed through said openin gs and soldered at their inner ends to the separate sections, whereby said facing or collar is readily soldered to the casing of the thimble withoutr necessitating any cleaning of the surfaces to be soldered.

The invention also consists in a novel construction of hook formed integral with a castmetal facing or collar with a space between the inner face thereof and the hook, in order to allow a collar to be inserted into said space when the stove-pipe is withdrawn, and to furnish attaching means for a spring adapted t0 draw the separate sections together; and the invention furthermore consists in the detail construction and arrangement of the parts, all as hereinafter more particularly described, and pointed out in the claims.

In describing this invention reference is had to the accompanying drawings, forming a part of this specification, in which like letters indicate corresponding parts in all the views.

Figure l represents an isometric view of the thimble having its several parts assembled in operative position with the telescoping sections partially separated. Fig. 2 represents a longitudinal vertical section of the thimble as illustrated in Fig. 1. Fig. 3 is an inverted plan of the detached annular ring or collar for the thimble; and Fig. 4 is an enf larged longitudinal vertical section of a portion of the facing or collar, the casing for the thimble, and the rivet for securing the said parts together.

A represents the casing of the thimble composed of the tubular sections a a', telescoping one within the other and formed of any suitable material--as sheet-tinwthat will enable the said sections to be readily and cheaply constructed. The ends of the thimble are composed of annular-shaped rings or collars B, which may be suitably ornamented and are com posed of suitable material, preferably of 'cast metal.

This device is particularly an improvement upon that previously patented to myself upon July 24e, 1883, and numbered 281,710. In that device the exterior ring or facing and the section of the thimble were riveted together; but experience has demonstrated that with this manner of assemblage a number of rings are broken, owing to the variation in the openings formed in said cast ring for the reception of the rivets, and also the great liability of direct contact of the riveting means with the collar.

. In my present invention the tubular sections a a are formed, as described, of sheettin or other metal to which solder readily adheres, and the separate collars or facings are provided with suitable openings b, into which, after the said parts are cast in the desired form, a rivet C is inserted. This rivet is composed of copper or other suitable material to which solder will readily adhere, and after the described assemblage of the parts a drop of solder, when placed between the side c of the rivetO and the sections a or a', readily secures the said parts together.

In order to prevent the displacement of the collars or rings and too great strain being applied to the securing-rivets O, I form said collar with depending flanges B', adapted to bear against the adjacent end of the telescoping sections. As illustrated in the drawings, this depending flange B is composed of a series of segments, since the rivet C is in the same curved plane as the outside contact-face of the flange B. In order to render these sections adjustable one toward the other and enable them to readily lit any partition in which they are inserted, I attach to the opposite sections or separa-te extremities a spring IOO D. The securing means for this spring consists of a hook d, which, instead of being formed asin my aforesaid patent, is cast integral with the ring B and is depended from the inner face thereof, so that a space intervenes between. the inner face b and the end CZ of said hook.

When the stove-pipe is withdrawn, it is frequent-ly desirable to fill the open space with a collar, the securing portion of which must rest against the inner face of said collar B, and I have found in practice that with the construction of hook illustrated in my aforesaid patent it is absolutely imposible to secure said additional collar in this manner. This objection, however, is entirely obviated by the new construction of hook, since any desired form of collar or securing means may be readily interposed between said hook and the inner face of the collar orring. This particular formation of hook is also of further advantage, since as the same is directly vbeneath the solid portion of the ring B the liability of the disengagement of the spring is reduced to a minimum, thus greatly increasing the efliciency of the device. K

The operation of my invention will be readily perceived from the foregoing, and it will be understood that the same is adjustable to any-sized partition; that the componentparts are very readily and cheaply constructed; that the assemblage of said parts into operative position is both simple and effective, and that the thimble thus presents features of great advantage and efficiency, combined with great cheapness and economy of manufacture. It Will be understood, however, that instead of copper rivets C, the rivets may be composed of fusible material, and by pressing a soldering-iron or other heated and proper tool against said rivet the same will fuse and readily secure the casing or facing to the telescoping sections a a in the same manner as the copper rivet C.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The herein-described stove-pipe thimble, consisting of the casing composed of telescopic sections or divisions, a facing at the extremity of one of said sections, and a rivet secured in said facing and soldered to said section, substantially as and for the purpose set forth.

2. As a new article of manufacture, -a stovepipe thimble consisting, essentially, of a casing composed of telescopic sections, a facing for said casing provided with an opening, and a rivet inserted into said opening after the formation of the said casing and soldered to the said casing, whereby the parts are assembled without previous cleaning of the surfaces to be soldered, substantially as and for the purpose set forth.

3. The herein-described thimble, consisting of the casing composed of telescopic sections, a facing at the separate extremities of' said casing,a hook (l, formed integral with said facing or rings and bent downwardly from the inner face thereof, and a spring connected to the hooks upon the separate facings or rings, substantially as and for the purpose described.

In testimony whereof I have hereunto signed my naine, in the presence of two attesting witnesses, at Syracuse, in the county of Onondaga, in the State of New York, this 5th day of December, 1889.

MICHAEL MGGUIRE.

Witnesses:

CLARK H. NORTON, M. BAXTER. 

